256213356

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:268

約数の個数: 144

約数和(自身を含む): 725630976

約数和(自身を除く): 469417620

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 47, 49, 73, 84, 94, 98, 127, 141, 146, 147, 188, 196, 219, 254, 282, 292, 294, 329, 381, 438, 508, 511, 564, 588, 658, 762, 876, 889, 987, 1022, 1316, 1524, 1533, 1778, 1974, 2044, 2303, 2667, 3066, 3431, 3556, 3577, 3948, 4606, 5334, 5969, 6132, 6223, 6862, 6909, 7154, 9212, 9271, 10293, 10668, 10731, 11938, 12446, 13724, 13818, 14308, 17907, 18542, 18669, 20586, 21462, 23876, 24017, 24892, 27636, 27813, 35814, 37084, 37338, 41172, 41783, 42924, 48034, 55626, 64897, 71628, 72051, 74676, 83566, 96068, 111252, 125349, 129794, 144102, 167132, 168119, 194691, 250698, 259588, 288204, 292481, 336238, 389382, 435737, 454279, 501396, 504357, 584962, 672476, 778764, 871474, 877443, 908558, 1008714, 1169924, 1307211, 1362837, 1742948, 1754886, 1817116, 2017428, 2614422, 2725674, 3050159, 3509772, 5228844, 5451348, 6100318, 9150477, 12200636, 18300954, 21351113, 36601908, 42702226, 64053339, 85404452, 128106678, 256213356]

約数ペア:

[(1, 256213356), (2, 128106678), (3, 85404452), (4, 64053339), (6, 42702226), (7, 36601908), (12, 21351113), (14, 18300954), (21, 12200636), (28, 9150477), (42, 6100318), (47, 5451348), (49, 5228844), (73, 3509772), (84, 3050159), (94, 2725674), (98, 2614422), (127, 2017428), (141, 1817116), (146, 1754886), (147, 1742948), (188, 1362837), (196, 1307211), (219, 1169924), (254, 1008714), (282, 908558), (292, 877443), (294, 871474), (329, 778764), (381, 672476), (438, 584962), (508, 504357), (511, 501396), (564, 454279), (588, 435737), (658, 389382), (762, 336238), (876, 292481), (889, 288204), (987, 259588), (1022, 250698), (1316, 194691), (1524, 168119), (1533, 167132), (1778, 144102), (1974, 129794), (2044, 125349), (2303, 111252), (2667, 96068), (3066, 83566), (3431, 74676), (3556, 72051), (3577, 71628), (3948, 64897), (4606, 55626), (5334, 48034), (5969, 42924), (6132, 41783), (6223, 41172), (6862, 37338), (6909, 37084), (7154, 35814), (9212, 27813), (9271, 27636), (10293, 24892), (10668, 24017), (10731, 23876), (11938, 21462), (12446, 20586), (13724, 18669), (13818, 18542), (14308, 17907)]